A/C heater blower switch

Hoosierdaddy · **Posted:** Fri May 08, 2009 10:18 pm

My blower only runs on the 3 and 4 position. My first response was to change the switch but my buddy says that there is a component (relay?) under the hood that is failure prone. Has anybody had experience with this problem?
Thanks

2006 CRD

rt_power · **Posted:** Sat May 09, 2009 8:57 am

sound to me like you have a pooched resistor block. someone quote me if I'm wrong but i believe that is right behind the glove box. its an easy and cheep fix. i found this by doing a search hope it helps
http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?t=8284&highlight=resistor+block

tomsjeep · **Posted:** Sat May 09, 2009 11:28 am

The blower motor resistor is the Jeep part that is most prone to toasting... and a good reason to keep a fire extinguisher around.
My TJ has gone through 3 of them so far. My Libby hasn't gone through its first one yet... keeping fingers crossed.

Note: this is an unscientific, opinionated answer. It may not actually be true, but it sure seems like it's true!

SweepnChoke · **Posted:** Sat May 09, 2009 4:51 pm

I am on my 3rd resistor pack in my Liberty, and the 2nd in my wife's. The failure mode is exactly as you described, some speeds work, others do not (usually it's the higher speeds that are still functional).

As rt_power said, it's an easy and relatively cheap fix.

valvestem · **Joined:** Thu Jul 07, 2005 7:01 pm **Posts:** 222

Deleted, "Doesn't Matter"

oddball · **Posted:** Wed May 13, 2009 8:18 pm

Doesn't matter what brand vehicle, if your blower only works on the two highest settings, the resistor is bad. Get one from Mopar (Jeep).

A/C heater blower switch

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